OPT-2501 Cntct Lns Theory II Unit 5

Question 1

Keratoconus and penetrating keratoplasty fittings are best accomplished by which of the following?

Answer 1

Diagnostic fitting

Question 2

A lens fitted for keratoconus should:

Answer 2

Align with the apex

Question 3

One might utilize which of the following lens designs given the following information:
Ks: 46.00@ 100 / 49.00 @ 20 +2 distortion
Rx: -7.00 -3.50 x 100

Answer 3

Rose K

Question 4

On a compromised cornea, such as a that has undergone a corneal graft, what lens characteristic would be most beneficial?

Answer 4

High DK/L

Question 5

An aphakic patient with K reading of 40.50 @180 / 41.25 @ 90, large palpebral fissures and flaccid lower lids is a good candidate for a__________ lens.

Answer 5

Myoflange lenticular RGP

Question 6

Which of the following conditions may benefit from an X-Chrom or Ruby Red lens?

Answer 6

Corneal scars

Question 7

Among the following choices, which is the latest lens design for keratoconus?

Answer 7

Rose K

Question 8

RGP lenses with a secondary curve steeper than the C.P.C. may be used for all of the following conditions except__________.

Answer 8

Aphakia

Question 9

Which of the following conditions may benefit from an iris lens with a black pupil?

Answer 9

Corneal scars

Question 10

A patient has a possible acuity of 20/25 but has anaridia and photophobia. What type of lens would you fit?

Answer 10

Opaque cosmetic lens with optics